Pipe coupling



E. JOHNSON PIPE COUPLING Filed May 12, 1924 2 Sheets-Sheet 1 idimm fdmaw INVENTGF'.

WITNESS: ATTORNEY Feb. 10, 1925. 1,526,218

' E. JOHNSON PIPE COUPLING Ffiled jlay 12. 1924 2 Sheets-Sheet 2 r1 if z ,Zdwrd Ja'izizawt Patented Feb. 10, 1925.

EDWARDJOHNSON, COVINGTON, KENTUCKY.

PIPE COUPLING.

AppIication filed May 12, 1924. Serial No. 712,771.

, plings, and contemplates a structure wherein the adjacent ends of the pipe line for air is coupled simultaneously with the coupling of the cars, and the air valves arranged in the pipe line sections automatically and simultaneously opened.

The nature and advantages of the invention will be better understood when the following detailed description is read in connection with the accompanying drawings,

the invention residing in the construction, combination and arrangement orparts as claimed.

In the drawings forming part of this ap plication, like numerals of reference indicate similar parts in the several views, and wherein:

Figure 1 is a View of the coupling showing the coupling head associated,

Figure 2 is a vertical sectional view through the train pipe coupling shown in Figure 1,

Figure 3 is a view partly in section showing half of the coupling head, and the nor, mal position of the coupling sleeve of one of the pipe sections,

Figure 1 is an end view of one of the coupling heads,

Figure 5 is a sectional view taken on line 5-5 of Figure 3.

Referring to the drawings in detail, A represents the coupling between two adjacent cars, and as will be noted in Figure 1, the coupling for the train pipe is shown directly beneath this coupling A The train pipe coupling for the air line sections includes what I term coupling heads, there being one of these heads carried by each car and constructed for interfitting association when the cars are coupled together through the 'instrumentality of the coupling A. Each coupling head consists of a casing divided into halves, the halves oi: one head being indicated at and 11 respectively, and these halves are secured together by bolts or any other suitable fas tening elements indicated at 12. Each head is of hollow formation as is clearly shown in Figure 5 to accommodate the adjacent end or the train pipe section 13, and also the mechanism employedto automatically open the valve 14 in said pipe section, when the coupling heads are brought together. hen the halves 10 and 11 are joined together, they unitedly define a central opening through which projects a sleeve 15, this sleeve being slidably mounted upon the end of the train pipe section 13 which is arranged within the head of the coupling. The pipe section is formed with a flange 16 against which bears one end of a coil spring 17, the other end of this spring bearing against the flange 18 formed on the sleeve 15, so that the spring normally maintains the sleeve projected through the coupling member as clearly shown in Figure 3. The outer end of each sleeve is formed to support a gasket 19, so that when the adjacent pipe line sections are arranged in end to end relation, incident to the coupling of the cars, a fluid tight joint will be provided between said train line sections. Projecting from each coupling head is a substantially cone shaped extension formed in halve-s, onehalf being carried by each part of the head and indicated at 20. Each part of the coupling head is further formed with a depression 21, and when the respective parts 10 and 11 of the coupling head are connected together, these depressions form a pocket of a contour to receive the cone shaped projection carried by the other coupling head. Consequently when the cars are coupled together, the heads of the train pipe coupling are also interfittingly associated, in that the projection 20 on one con pling head is received by the cone shaped pocket 21 on the other coupling head, while the coupling sleeves 15 ot the respective heads are joined in end to end relation and are effectively held in the position shown in Figure 2 by means of the springs 17.

As hereinabove stated each train pipe section is provided with a valve 14:, and this valve is normally held closed by means of the spring 22 clearly shown in Figure it is my purpose however to automatically open these valves when the coupling heads are joined together, for which purpose 1 preferably employ the mechanism. shown. This mechanism includes a. plunger 23 arranged to slide within the pocket 21 of each coupling head, the plunger being supported by one end of a rod 2st arranged to slide through av suitable bracket 25. A, coil spring 26 surrounds the rod: 24 and?llflSitSOP-POSHQ ends hearing against the bracket. 25. and

plunger 23 to normally hold. the plunger. in.

a posit-ion shown in Figure 8, in which position it is engaged by the projection. 201cm;- ried by the other coupling head when said coupling heads are operativeliy associated". A link 27 is connected With the valve let and a slot and pin- 28 provides a connection betweenthe linli QT and the rod 24-; Manifestly when thecoupling heads: arecoupled together; the projecti'on- 20011 one head en gages the plunger carried by the other head, mov-ing'the plunger inwardlylrom the position shownin Figure-o to-the position shown in Figure 2; thereby automatically opening the valves letineaclrt-rainpipe section 13. it isof course to he understood that the coupling heads can be mounted upon the cars inany suitable manner, but for this purpose lhave shown abracket arm Qflwhich: terminates to provide a socket 30 to receive the spherical head 31'- projecting from one end oteacltcoupling head.

While itis believed that from the iore going'description, the nature and advantages of the invention will; be readily apparent; l desire to have it understood that l donot. innit myself to What is herein shown and described, and that such changes may be resorted to when desired as fall Within the scope of What is claimed.

I claim:

A train pipe-coupling including a pair of 3 coupling heads, a. train pipe section support ed by each head and having its terminal arranged therein, a. springpressed coupling sleeve arranged to slideon the endof said pipe sectionand normally pro ecteo through 4 anopeningin said heath. a cone-shaped projectionextending tromeach head, a pocket formed ineach head toreceive the cone shaped; projection on the other head, a normalliy closedva lvein each-pipesectiom and 4 means for automatically opening said valves When-said heads are coupled; said means in cluding; aspring pressed plunger normally arranged in thepocket of said head and adapted to be actuatediby the projection received by saidpocket.

In-testiinony;whereofI allix my signature.

ED WARD (f)l-l'i\ SUN. 

